不同肥料处理对豫麦34冠层结构特征及产量的影响

Effects of Different Fertilizer Treatments on Canopy Architecture and Grain Yield of Yumai 34

为给小麦合理施肥提供依据,在等氮条件下,研究了尿素、鸡粪和尿素与鸡粪配施三种肥料处理对豫麦34冠层结构特性和产量的影响。结果表明,在小麦拔节期,尿素与鸡粪配施处理小麦平均叶倾角最小,为53.89°;叶面积指数、群体透光率、消光系数依次为4.63、0.055和0.63,均处在鸡粪处理和尿素处理之间。在孕穗期到灌浆期,尿素与鸡粪配施使小麦平均叶倾角介于鸡粪和尿素处理之间,为51.96°;叶面积指数、群体消光系数均最大,分别为5.80和0.66;群体透光率最小,为0.028。尿素与鸡粪配施的小麦穗粒数、穗粒重、生物产量、经济产量均高于鸡粪处理和尿素处理。综合来看,配施处理的小麦冠层结构适宜,株型最佳,群体光分布合理。

At the same amount of nitrogen application, the effects of treatments of urea, chicken manure and mixed fertilizer on canopy architecture and grain yield of Yumai 34 was studied, and the results showed as follows, during Jointing stage, average leaf angle of mixed fertilizer treatment was 53.89°, this number was less than that of urea and chicken manure treatment, and its leaf area index , light transmission rate and extinction coefficient was 4.63, 0. 055 and 0.63, respectively, and in the middle of the three treatments. From booting stage to grain filling stage, the average leaf angle of mixed fertilizer treatment was 51.96°, and in the middle of the three treatments; Leaf area index and extinction coefficient numbers was 5.80 and 0.66,respectively, and were the biggest among the three treatments. Light transmission rate was 0. 028, which was the least among the three treatments. Grains of per spike, spike weight, biomass yield,grain yield of the mixed fertilizer treatment were all higher than that of the other two treatments. In general, canopy architecture of Yumai34 was the best, and sunlight distribution was reasonable in mixed fertilizer treatment.